EP2874436A1 - Kanalschaltverfahren, -maschine und -vorrichtung - Google Patents

Kanalschaltverfahren, -maschine und -vorrichtung Download PDF

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Publication number
EP2874436A1
EP2874436A1 EP13886164.6A EP13886164A EP2874436A1 EP 2874436 A1 EP2874436 A1 EP 2874436A1 EP 13886164 A EP13886164 A EP 13886164A EP 2874436 A1 EP2874436 A1 EP 2874436A1
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EP
European Patent Office
Prior art keywords
mobile
channel
communication channel
destination
terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13886164.6A
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English (en)
French (fr)
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EP2874436B1 (de
EP2874436A4 (de
Inventor
Kui Zhang
Xinzheng YAO
Peng Zhao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Device Shenzhen Co Ltd
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Huawei Device Co Ltd
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Publication date
Application filed by Huawei Device Co Ltd filed Critical Huawei Device Co Ltd
Priority to EP18189865.1A priority Critical patent/EP3462779B1/de
Publication of EP2874436A1 publication Critical patent/EP2874436A1/de
Publication of EP2874436A4 publication Critical patent/EP2874436A4/de
Application granted granted Critical
Publication of EP2874436B1 publication Critical patent/EP2874436B1/de
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14—Spectrum sharing arrangements between different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a channel switching method, apparatus, and device.
  • Wi-Fi AP wireless local area network access ends
  • Wi-Fi STA wireless local area network clients
  • the Mobile Wi-Fi migrates a channel between the Mobile Wi-Fi and the Wi-Fi hotspot, and a channel between the Mobile Wi-Fi and a terminal device according to a dynamic frequency selection standard.
  • Embodiments of the present invention provide a channel switching method, apparatus, and device, which are used to solve the problem that compatibility, a throughput, and stability of a Mobile Wi-Fi in the prior art are all poor.
  • a first aspect of the embodiments of the present invention provides a channel switching method, including:
  • the switching, by the mobile Wi-Fi device according to the channel switching instruction, a communication channel between the mobile Wi-Fi device and the Wi-Fi access point, and a communication channel between the mobile Wi-Fi device and a terminal that accesses the mobile Wi-Fi device to a destination communication channel corresponding to the destination channel identifier includes:
  • the switching, by the mobile Wi-Fi device according to the channel switching instruction, a communication channel between the mobile Wi-Fi device and the Wi-Fi access point, and a communication channel between the mobile Wi-Fi device and a terminal that accesses the mobile Wi-Fi device to a destination communication channel corresponding to the destination channel identifier includes:
  • the method before the obtaining, by a mobile Wi-Fi device, a channel switching instruction sent by a Wi-Fi access point in a network, the method further includes:
  • the method further includes:
  • the method further includes:
  • a second aspect of the embodiments of the present invention provides a channel switching apparatus, including:
  • the processing module includes:
  • the processing module is further configured to: control, according to the channel switching instruction, the communication channel between the mobile Wi-Fi device and the Wi-Fi access point to be switched to the destination communication channel corresponding to the destination channel identifier; and at the same time control the communication channel between the mobile Wi-Fi device and the terminal that accesses the mobile Wi-Fi device to be switched to the destination communication channel corresponding to the destination channel identifier.
  • the obtaining module is further configured to receive, by using the receiver in the mobile Wi-Fi device, a termination instruction that is sent by the Wi-Fi access point in the network and used for instructing the mobile Wi-Fi device to stop transmitting data; and the processing module is further configured to terminate, according to the termination instruction, data transmission performed by the mobile Wi-Fi device on the communication channel between the mobile Wi-Fi device and the Wi-Fi access point.
  • the processing module is further configured to send the termination instruction to the terminal that accesses the mobile Wi-Fi device, so as to instruct the terminal to stop transmitting data on the communication channel on which the terminal communicates with the mobile Wi-Fi device.
  • the processing module is further configured to send information including the destination channel identifier to the terminal that accesses the mobile Wi-Fi device, where the information is used to instruct the terminal to switch from the communication channel on which the terminal communicates with the mobile Wi-Fi device to the destination communication channel corresponding to the destination channel identifier.
  • a third aspect of the embodiments of the present invention provides a mobile Wi-Fi device, including:
  • the Wi-Fi processing chip is further configured to: control, according to the channel switching instruction, the communication channel between the mobile Wi-Fi device and the Wi-Fi access point to be switched to the destination communication channel corresponding to the destination channel identifier, and generate a switching completion signal; and switch, according to the switching completion signal, the communication channel between the mobile Wi-Fi device and the terminal that accesses the mobile Wi-Fi device to the destination communication channel corresponding to the destination channel identifier.
  • the Wi-Fi processing chip is further configured to: control, according to the channel switching instruction, the communication channel between the mobile Wi-Fi device and the Wi-Fi access point to be switched to the destination communication channel corresponding to the destination channel identifier; and control the communication channel between the mobile Wi-Fi device and the terminal that accesses the mobile Wi-Fi device to be switched to the destination communication channel corresponding to the destination channel identifier.
  • the receiver is further configured to receive a termination instruction that is sent by the Wi-Fi access point in the network and used for instructing the mobile Wi-Fi device to stop sending data; and the Wi-Fi processing chip is further configured to terminate, according to the termination instruction, data transmission performed by the mobile Wi-Fi device on the communication channel between the mobile Wi-Fi device and the Wi-Fi access point.
  • the Wi-Fi processing chip is further configured to send information including the destination channel identifier to the terminal that accesses the mobile Wi-Fi device, where the information is used to instruct the terminal to switch from the communication channel on which the terminal communicates with the mobile Wi-Fi device to the destination communication channel corresponding to the destination channel identifier.
  • the mobile Wi-Fi device has a single Wi-Fi chip, and the Wi-Fi processing chip is disposed on the Wi-Fi chip.
  • a mobile Wi-Fi device obtains a channel switching instruction sent by a Wi-Fi access point in a network, where the channel switching instruction carries a destination channel identifier; and the mobile Wi-Fi device switches, according to the channel switching instruction, a communication channel between the mobile Wi-Fi device and the Wi-Fi access point, and a communication channel between the mobile Wi-Fi device and a terminal that accesses the mobile Wi-Fi device to a destination communication channel corresponding to the destination channel identifier carried in the channel switching instruction, which avoids the problem that a Wi-Fi client and a Wi-Fi access end of a mobile Wi-Fi device are switched to different communication channels when channel switching is performed.
  • the Wi-Fi client and Wi-Fi access end of the mobile Wi-Fi device then still work on a same communication channel after performing the channel switching, thereby improving compatibility, a throughput, and stability of the mobile Wi-Fi device.
  • a mobile Wi-Fi device in embodiments of the present invention may serve as a Wi-Fi client (Wi-Fi STA) and a Wi-Fi access point (Wi-Fi AP).
  • Wi-Fi STA Wi-Fi client
  • Wi-Fi AP Wi-Fi access point
  • a Mobile Wi-Fi in FIG. 2 has functions of both a Wi-Fi AP and a Wi-Fi STA.
  • the Mobile Wi-Fi can access a Wi-Fi hotspot in a network by using the Wi-Fi STA, and as a result, the Mobile Wi-Fi is connected to the network (Internet) by using the Wi-Fi hotspot.
  • the Wi-Fi AP is used for communication between the Mobile Wi-Fi and a terminal that accesses the Mobile Wi-Fi.
  • the Wi-Fi hotspot in the network instructs the Mobile Wi-Fi to perform channel switching
  • the Wi-Fi AP and the Wi-Fi STA in the Mobile Wi-Fi need to perform channel switching.
  • the Wi-Fi AP and Wi-Fi STA perform dynamic frequency selection separately, and a result of the performing may cause the Wi-Fi AP and Wi-Fi STA in the Mobile Wi-Fi to work on different communication channels.
  • the Mobile Wi-Fi encounters problems of poor compatibility, a poor throughput, and poor stability.
  • a Wi-Fi STA in a Mobile Wi-Fi in an embodiment of the present invention detects in real time whether a channel switching instruction sent by a Wi-Fi hotspot in a network is received.
  • the Wi-Fi STA in the Mobile Wi-Fi receives the channel switching instruction, the Mobile Wi-Fi switches a communication channel between the Mobile Wi-Fi and the Wi-Fi hotspot, and a communication channel between the Mobile Wi-Fi and a terminal that accesses the Mobile Wi-Fi to a destination communication channel corresponding to a destination channel identifier.
  • the channel between the Mobile Wi-Fi and the terminal and the channel between the Mobile Wi-Fi and the Wi-Fi hotspot in the network are switched to a same communication channel.
  • FIG. 3 is a flowchart of the channel switching method according to the embodiment of the present invention. The method includes:
  • a mobile Wi-Fi device obtains a channel switching instruction sent by a Wi-Fi access point in a network, where the channel switching instruction carries a destination channel identifier of a destination communication channel that needs to be switched to.
  • the mobile Wi-Fi device switches, according to the channel switching instruction, a communication channel between the mobile Wi-Fi device and the Wi-Fi access point, and a communication channel between the mobile Wi-Fi device and a terminal that accesses the mobile Wi-Fi device to the destination communication channel corresponding to the destination channel identifier.
  • the mobile Wi-Fi switches a channel between the Mobile Wi-Fi and a terminal, and a channel between the Mobile Wi-Fi and a Wi-Fi hotspot in a network to a same communication channel, thereby solving the problems of poor compatibility, a poor throughput, and poor stability of the Mobile Wi-Fi.
  • a Wi-Fi STA of the Mobile Wi-Fi switches from a communication channel, which the Wi-Fi STA is currently on, to the destination communication channel corresponding to the destination channel identifier carried in the channel switching instruction.
  • the Wi-Fi STA in the Mobile Wi-Fi After the Wi-Fi STA in the Mobile Wi-Fi switches to the destination communication channel, the Wi-Fi STA in the Mobile Wi-Fi sends information including the destination channel identifier to a Wi-Fi AP in the Mobile Wi-Fi, and controls the Wi-Fi AP in the Mobile Wi-Fi to switch, according to the received information, from a communication channel, which the Wi-Fi AP is currently on, to the destination communication channel corresponding to the destination channel identifier.
  • the Wi-Fi hotspot notifies the Mobile Wi-Fi in time, and then the Wi-Fi STA and Wi-Fi AP in the Mobile Wi-Fi automatically switch to a same destination communication channel as that of the Wi-Fi hotspot.
  • the Wi-Fi hotspot communicates on a channel 108, and the Wi-Fi STA in the Mobile Wi-Fi connected to the Wi-Fi hotspot also communicates on the channel 108.
  • the Wi-Fi hotspot detects interference on the current channel, for example, when interference of a radar signal exists
  • the Wi-Fi hotspot determines an available communication channel 110, and the Wi-Fi hotspot switches the channel to the channel 110 for communication.
  • the Wi-Fi hotspot generates a channel switching instruction carrying an identifier of the channel 110, and sends the channel switching instruction to the Mobile Wi-Fi.
  • a Wi-Fi chip in the Mobile Wi-Fi parses the received channel switching instruction, and determines the destination channel identifier in the channel switching instruction.
  • the Wi-Fi STA in the Mobile Wi-Fi first obtains the destination channel identifier from the channel switching instruction, and switches, according to the destination channel identifier, to the channel 110 for communication; and the Wi-Fi STA sends the channel switching instruction to the Wi-Fi AP in the Mobile Wi-Fi.
  • the Wi-Fi AP in the Mobile Wi-Fi After the Wi-Fi AP in the Mobile Wi-Fi receives the channel switching instruction, the Wi-Fi AP also switches, according to the destination channel identifier, from the communication channel, which the Wi-Fi AP is currently on, to the channel 110 for communication. In this way, the Wi-Fi hotspot in the network, and the Wi-Fi STA and Wi-Fi AP in the Mobile Wi-Fi are all on the same communication channel, thereby improving compatibility, a throughput, and stability of the Mobile Wi-Fi.
  • the Wi-Fi STA and Wi-Fi AP in the Mobile Wi-Fi perform channel switching successively. That is, the Wi-Fi STA in the Mobile Wi-Fi performs the channel switching first, and then the Wi-Fi AP in the Mobile Wi-Fi performs the channel switching. In the embodiment of the present invention, besides this switching manner, the Wi-Fi STA and Wi-Fi AP in the Mobile Wi-Fi may also perform the channel switching simultaneously.
  • the Mobile Wi-Fi determines, according to the destination channel identifier in the channel switching instruction, the destination communication channel that needs to be switched to, and then the Mobile Wi-Fi simultaneously controls the Wi-Fi STA and the Wi-Fi AP to switch to the destination communication channel corresponding to the destination channel identifier.
  • the Wi-Fi AP After the Wi-Fi AP in the Mobile Wi-Fi also completes the channel switching, the Wi-Fi AP sends a channel switching instruction including the destination channel identifier to a client terminal that accesses the Wi-Fi AP, where the channel switching instruction may instruct the client terminal to switch from a communication channel on which the client terminal communicates with the Mobile Wi-Fi to the destination communication channel.
  • the Mobile Wi-Fi starts the Wi-Fi AP and Wi-Fi STA in the Mobile Wi-Fi to send data on the destination communication channel.
  • the Wi-Fi AP and Wi-Fi STA in the Mobile Wi-Fi described in the embodiment of the present invention are integrated in a single Wi-Fi processing chip of the Mobile Wi-Fi, where the Wi-Fi processing chip performs data exchange with the Wi-Fi hotspot and a terminal device in a manner of time division multiplexing.
  • a Wi-Fi hotspot, a Wi-Fi AP, a Wi-Fi STA, and a client terminal are all enabled to keep sending data on a same communication channel, thereby greatly improving compatibility, a throughput, and stability of a Mobile Wi-Fi.
  • FIG. 4 is a flowchart of the channel switching method according to the another embodiment of the present invention. The method includes:
  • the Wi-Fi hotspot in the network first sends, to the Mobile Wi-Fi, a termination instruction used for instructing the Mobile Wi-Fi to stop sending data.
  • the Mobile Wi-Fi terminates data sending, which is performed by a Wi-Fi STA and a Wi-Fi AP included in the Mobile Wi-Fi, on a communication channel that the Wi-Fi STA and Wi-Fi AP included in the Mobile Wi-Fi are currently on.
  • the Wi-Fi AP further sends the termination instruction to the client terminal that accesses the Wi-Fi AP, where the termination instruction is used to instruct the client terminal to stop transmitting data on the communication channel on which the client terminal communicates with the mobile Wi-Fi device.
  • the Wi-Fi hotspot After data transmission performed by the Mobile Wi-Fi and the terminal is terminated, the Wi-Fi hotspot detects an available communication channel, and instructs the Mobile Wi-Fi to perform communication channel switching.
  • a channel switching process of the Mobile Wi-Fi is the same as that in Embodiment 1 and is not described herein again.
  • FIG. 5 is a flowchart of channel switching of a Mobile Wi-Fi according to an embodiment of the present invention. The process includes:
  • step 8 to step 15 for different providers, a sequence of performing the steps is not limited, but a principle is the same as that of the technical solutions of the present invention. Therefore, a change in details of the steps shall still fall within the scope of the technical solutions of the present invention.
  • a Wi-Fi hotspot, a Wi-Fi AP, a Wi-Fi STA, and a client terminal are all enabled to keep sending data on a same communication channel, thereby greatly improving compatibility, a throughput, and stability of a Mobile Wi-Fi.
  • an embodiment of the present invention further provides a channel switching apparatus.
  • the apparatus is applied to a mobile Wi-Fi device with a single Wi-Fi chip.
  • FIG. 6 is a schematic structural diagram of the channel switching apparatus according to the embodiment of the present invention.
  • the channel switching apparatus includes:
  • the processing module 602 in the embodiment of the present invention includes:
  • the processing module 602 is further configured to: control, according to the channel switching instruction, the communication channel between the mobile Wi-Fi device and the Wi-Fi access point to be switched to the destination communication channel corresponding to the destination communication identifier; and at the same time control the communication channel between the mobile Wi-Fi device and the terminal that accesses the mobile Wi-Fi device to be switched to the destination communication channel corresponding to the destination communication channel identifier.
  • the obtaining module 601 is further configured to receive, by using the receiver in the mobile Wi-Fi device, a termination instruction that is sent by the Wi-Fi access point in the network and used for instructing the mobile Wi-Fi device to stop transmitting data; and the processing module 602 is further configured to terminate, according to the termination instruction, data transmission performed by the mobile Wi-Fi device on the communication channel between the mobile Wi-Fi device and the Wi-Fi access point.
  • processing module 602 in the embodiment of the present invention is further configured to send the termination instruction to the terminal that accesses the mobile Wi-Fi device, so as to instruct the terminal to stop transmitting data on the communication channel on which the terminal communicates with the mobile Wi-Fi device.
  • the processing module 602 is further configured to send information including the destination channel identifier to the terminal that accesses the mobile Wi-Fi device, where the information is used to instruct the terminal to switch from the communication channel between the terminal and the mobile Wi-Fi device to the destination communication channel corresponding to the destination channel identifier.
  • FIG. 8 is a schematic structural diagram of the mobile Wi-Fi device according to the embodiment of the present invention.
  • the mobile Wi-Fi device includes:
  • the Wi-Fi processing chip 802 is further configured to: control, according to the channel switching instruction, the communication channel between the mobile Wi-Fi device and the Wi-Fi access point to be switched to the destination communication channel corresponding to the destination channel identifier, and generate a switching completion signal; and switch, according to the switching completion signal, the communication channel between the mobile Wi-Fi device and the terminal that accesses the mobile Wi-Fi device to the destination communication channel corresponding to the destination channel identifier.
  • the Wi-Fi processing chip 802 is further configured to control, according to the channel switching instruction, the communication channel between the mobile Wi-Fi device and the Wi-Fi access point to be switched to the destination communication channel corresponding to the destination channel identifier; and control the communication channel between the mobile Wi-Fi device and the terminal that accesses the mobile Wi-Fi device to be switched to the destination communication channel corresponding to the destination channel identifier.
  • the receiver 801 is further configured to receive a termination instruction that is sent by the Wi-Fi access point in the network and used for instructing the mobile Wi-Fi device to stop sending data; and the Wi-Fi processing chip 802 is further configured to terminate, according to the termination instruction, data transmission performed by the mobile Wi-Fi device on the communication channel between the mobile Wi-Fi device and the Wi-Fi access point.
  • the Wi-Fi processing chip 802 is further configured to send information including the destination channel identifier to the terminal that accesses the mobile Wi-Fi device, where the information is used to instruct the terminal to switch from the communication channel on which the terminal communicates with the mobile Wi-Fi device to the destination communication channel corresponding to the destination channel identifier.
  • the mobile Wi-Fi device has a single Wi-Fi chip, and the Wi-Fi processing chip 802 in the mobile Wi-Fi device is disposed on the Wi-Fi chip.
  • a mobile Wi-Fi device obtains a channel switching instruction sent by a Wi-Fi access point in a network, where the channel switching instruction carries a destination channel identifier; and the mobile Wi-Fi device switches a communication channel between the mobile Wi-Fi device and the Wi-Fi access point, and a communication channel between the mobile Wi-Fi device and a terminal that accesses the mobile Wi-Fi device to a destination communication channel corresponding to the destination channel identifier carried in the channel switching instruction, which avoids the problem that a Wi-Fi client and a Wi-Fi access end of a mobile Wi-Fi device are switched to different communication channels when channel switching is performed.
  • the Wi-Fi client and Wi-Fi access end of the mobile Wi-Fi device then still work on a same communication channel after performing the channel switching, thereby improving compatibility, a throughput, and stability of the mobile Wi-Fi device.
  • the present invention is described with reference to the flowcharts and/or block diagrams of the method and device (system) according to the embodiments of the present invention, and a computer program product. It should be understood that computer program instructions may be used to implement each process and/or each block in the flowcharts and/or block diagrams, and a combination of a process and/or a block in the flowcharts and/or the block diagrams.
  • These computer program instructions may be provided for a general-purpose computer, a dedicated computer, a built-in processor, or a processor of another programmable data processing device to generate a machine, so that the instructions executed by a computer or a processor of another programmable data processing device generate an apparatus for implementing a specific function in one or more processes in the flowcharts and/or in one or more blocks in the block diagrams.
  • These computer program instructions may also be stored in a computer readable memory that can instruct a computer or another programmable data processing device to work in a specified manner, so that the instructions stored in the computer readable memory generate an artifact that includes an instruction apparatus.
  • the instruction apparatus implements a specific function in one or more processes in the flowcharts and/or in one or more blocks in the block diagrams.
  • These computer program instructions may also be loaded onto a computer or another programmable data processing device, so that a series of operations and steps are performed in the computer or the another programmable device, thereby generating computer-implemented processing. Therefore, the instructions executed in the computer or the another programmable device provide steps for implementing a specific function in one or more processes in the flowcharts and/or in one or more blocks in the block diagrams.
EP13886164.6A 2013-09-30 2013-09-30 Kanalschaltverfahren, -maschine und -vorrichtung Active EP2874436B1 (de)

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PCT/CN2013/084741 WO2015042967A1 (zh) 2013-09-30 2013-09-30 一种信道切换方法、装置及设备

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EP (2) EP3462779B1 (de)
JP (1) JP2015534404A (de)
CN (2) CN104126322B (de)
ES (2) ES2860808T3 (de)
WO (1) WO2015042967A1 (de)

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CN104126322B (zh) 2019-02-12
US20150098430A1 (en) 2015-04-09
JP2015534404A (ja) 2015-11-26
WO2015042967A1 (zh) 2015-04-02
CN109600809B (zh) 2021-11-19
CN109600809A (zh) 2019-04-09
ES2702317T3 (es) 2019-02-28
EP2874436B1 (de) 2018-09-26
EP2874436A4 (de) 2015-08-05
EP3462779B1 (de) 2020-12-30
ES2860808T3 (es) 2021-10-05
CN104126322A (zh) 2014-10-29
US9769721B2 (en) 2017-09-19
EP3462779A1 (de) 2019-04-03

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